/*    reset  css */
html, body {
    height: 100%;
    border: 0;
    font-family: "Helvetica-Neue", "Helvetica", Arial, sans-serif;
    margin: 0;
    padding: 0;
    font-size: $font-size-default;
    font-family: "MicroSoft YaHei",sans-serif;
}

div, span, object, iframe, img, table, caption, thead, tbody,
tfoot, tr, tr, td, article, aside, canvas, details, figure, hgroup, menu,
nav, footer, header, section, summary, mark, audio, video {
    border: 0;
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, address, cit, code,
del, dfn, em, ins, q, samp, small, strong, sub, sup, b, i, hr, dl, dt, dd,
ol, ul, li, fieldset, legend, label {
    border: 0;
    font-size: 100%;
    vertical-align: baseline;
    margin: 0;
    padding: 0;
}

article, aside, canvas, figure, figure img, figcaption, hgroup,
footer, header, nav, section, audio, video {
    display: block;
}

*,
::before,
::after{
    margin: 0;
    padding: 0;

    -webkit-tap-highlight-color: transparent;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}
a{
    color: #333;
    text-decoration: none;
}
a:hover{
    text-decoration: none;
}
a img {
    border: 0;
}
:focus {
    outline: 0;
}
ul,ol{
    list-style: none;
}
input{
    border: none;
    outline: none;
    -webkit-appearance: none;
}
table {
    border-collapse: separate;
    border-spacing: 0;
    caption, th, td {
        text-align: left;
        vertical-align: middle;
    }
}
textarea{
    resize: none;
    appearance: none;
}
input{
    appearance: none;
}
select {
    appearance: none;
    background-color: #fff;
}
/* common css */
.f_left{
    float: left;
}
.f_right{
    float: right;
}
.clearfix::before,
.clearfix::after{
    content: "";
    height: 0;
    line-height: 0;
    display: block;
    visibility: hidden;
    clear: both;
}